What was the first sign before you BFP?

I’m just curious i’m 6 days late and i’ve been cramping like AF is coming. I’ve never been this late nor have i cramped this long and my period not show. I normally start as soon as i cramp which is why i’m a little shocked. i haven’t tested yet cause i don’t want to waste money then AF shows up. I just wanted to see if a late period and cramps was anyone else’s sign before their BFP.